Milliner Philip Treacy has received much buzz for his one-of-a-kind fascinators, especially those worn at the royal wedding. And now he’s reportedly sharing his sacred hat-making skills with one of his biggest clients: Lady Gaga! Treacy tells the U.K.’s Observer that Gaga, already a fan of his work, is ready to be his next apprentice. “She plans to,” Treacy reveals of her intent to intern with him. “She’s already visited me.” After requesting to work with the designer last spring, it appears that the collaboration is finally beginning. “This is what happened: one Monday morning, four burly bodyguards arrived — Lady Gaga’s security team — to check out the security of the building,” Treacy explains. “I looked at them as if to say, ‘What?! Who is going to take a pot shot at Lady Gaga?’ Anyway, she is young, talented and peculiar — which I like.” Given that Treacy’s hats are sometimes controversial — namely the love-it-or-hate-it headpiece worn by Princess Beatrice in April, which netted $130,000 for charity at auction — it seems only fitting that Gaga would be interested in his creation process. “A person carries off the hat,” Treacy says. “Hats are about emotion. It is all about how it makes you feel. I like hats that make the heart beat faster.” Tell us: What do you think of Lady Gaga interning for Treacy? –Kim Peiffer

PRINCESS BEATRICE: ROYALLY MAD HATTER

She made quite the impression with her debut at the royal wedding in a stunning Alexander McQueen gown and now, Pippa Middleton is causing yet another frenzy with her fashion choices. The sister of the Duchess of Cambridge has been the center of attention recently for her girl-next-door style, and the buzz continued the day after the wedding when she was seen carrying a snazzy Modalu purse around town. According to Stylelist.com the bag — formerly called the Bristol — is made of gray leather and accented with gold-colored statement zippers and a classic structure. Since Middleton’s debut with the bag the day after the wedding, it sold out almost instantly online and has been now renamed the “Pippa” bag. But you still might be able to get your hands on one; Modalu is now taking a limited number of pre-orders online and ready to ship by June 22. Read all about Middleton in this week’s PEOPLE, on newsstands now! Tell us: What do you think of the “Pippa” bag? –Kim Peiffer

SEE PIPPA AS A BRIDESMAID IN THE ROYAL WEDDING HERE!

They might not be glass slippers, but Kate Middleton keeps slipping her soon-to-be-royal foot into footwear brand Aquatalia by Marvin K, sporting two different pairs of boots from the line to public appearances this week. The bride-to-be is said to have recently purchased several pairs of boots at a Russel & Bromley store in London (which carries the collection exclusively in the U.K.), she wasted no time showing them off for the world to see. She first slipped on a pair of brown suede ‘Rouge’ ankle booties to christen a lifeboat in Anglesey, Wales on Thursday and a day later, was seen wearing a pair of ‘Rumba’ knee high boots in black stretch suede at the St. Andrews University 600th Anniversary celebration. But the brand is no stranger to a celebrity following: other fans of the line include Olivia Wilde, Cynthia Nixon, and Michelle Trachtenberg. You can snag the ‘Rouge’ booties in black suede for $375 at jildorshoes.com! —Kim Peiffer

SEE ALL THE LATEST NEWS ON WILLIAM AND KATE HERE!

Which of Hollywood’s style stars got readers buzzing this week? Check out our top stories!
-Kellie Pickler shared an exclusive peek at her Badgley Mischka wedding gown–and dished about her low-key bridal style! READ IT
-She’s a princess-to-be, but not a royal snob: Kate Middleton recycles her previously worn clothes to wear to a pal’s wedding. READ IT
-Is pregnant Natalie Portman glowing, or is that just the reflection from the engagement ring she’s been flashing? READ IT
-Katie Holmes gives stylish daughter Suri a run for her money with her ad campaign for Ann Taylor. READ IT
-Modern Family funny lady Sofia Vergara tweets a photo of herself struggling to zip into a Golden Globes gown! READ IT

Whether it’s for her own official engagement pictures or just another social event in her busy schedule, Kate Middleton doesn’t have to look far when it comes to finding the perfect outfit–she simply recycles something from her oh-so-chic closet, adds some new accessories and voila…a new princess-to-be look is born. It’s a very royal trend (Princess Diana was known to mix and match old and new pieces and Princess Anne is quite famous for her frugal approach to fashion), so it’s entirely fitting that Middleton, who will marry into the British royal family in just a few months, should adopt the recession-friendly trend herself. And we have to say, the 29-year-old does it very well. Accompanying her fiancé, Prince William, to a friend’s wedding in the UK on Saturday, she recycled one of her much-loved ISSA black dresses (from the label’s Spring/Summer 2007 collection no less), which she had previously worn to Prince William’s cousin, Peter Phillips’ wedding in 2008. Worn underneath a current season velvet dress coat from independent London label Libélula, the outfit was topped off with a structural feathered beret and a glowing smile. A smart choice, in more ways than one. –Monique Jessen

GET ALL THE WEDDING DETAILS IN WILLIAM AND KATE: A ROYAL ENGAGEMENT!

Newly engaged Prince William might be second in line for the British crown, but his younger brother, Harry, it seems, is the royal family’s leader when it comes to fashion. The ginger-haired prince earned himself a fifth-place spot on GQ UK’s annual Best-Dressed List, beating out his blond sibling, whom the magazine ranked as the 27th most stylish man. The royals share a love of classic English fashion, so what might have set the younger prince ahead of his brother? “He’s well dressed in the sense that he looks really good because he really doesn’t care,” an editorial expert says of Harry’s laid-back sartorial approach. The elder prince, however, has earned a style fan in fellow fop Pharrell Williams. “I like it when Prince William goes dandy,” the singer says. “He’s got all the proper wardrobe when they do the hunting thing. They kill that!” Which prince would you rate as more stylish, William or Harry?–Katherine Kluznik Rentmeester

GET ALL THE DETAILS ON PRINCE WILLIAM’S ENGAGEMENT TO KATE MIDDLETON!

Amedeo M. Turello/Principality of Monaco

The high-fashion pageantry of Sweden’s Princess Victoria’s wedding weekend has whet our appetite for the next royal nuptials–namely, that of newly betrothed couple HRH Prince Albert II of Monaco and South African beauty Charlène Wittstock. In the official engagement portrait released Wednesday, the statuesque blond wears a lovely sea-green halter dress from Swiss label Akris, yet our eyes are drawn to her left hand and her stunning engagement ring. Created by Parisian jewelry house Maison Repossi, the sparkler–the jeweler’s Téthys design–is a pear-shaped center diamond set in gray gold and embellished with round diamond brilliants. Tell us: What do you think of Charlene’s engagement ring? –Marissa Patlingrao Cooley; reporting by Peter Mikelbank

WireImage, Rex, JPI

While many girls dream about looking like royalty on their wedding day, Sweden’s Crown Princess Victoria, who married her beau Daniel Westling in Stockholm on Saturday, embodied the fantasy, donning three equally stunning looks during the weekend-long celebration. The princess kicked off the wedding reception Friday with the first of two custom Elie Saab Couture looks–a high-necked, cap-sleeve pale-pink cocktail dress embellished with a spray of appliqué clusters, which she paired with flirty gold pumps. Later that evening at a concert gala, she literally dazzled in her second Elie Saab creation–a sweeping, hand-embroidered asymmetrical nude gown adorned with delicate pearls and floral appliqués. Finally, for her wedding at Stockholm Cathedral, the elegant brunette looked fittingly regal, dressed in a custom-made ivory silk off-the-shoulder gown by Swedish designer Par Engsheden, according to InStyle.com, and custom Roger Vivier silk satin pumps with rhinestone buckles. For a finishing touch, the princess topped off the elegant look with the ultimate fairy-tale princess accessory: A towering cameo-bedecked tiara worn by her mother to her 1976 wedding.–Marissa Patlingrao Cooley

Anwar Hussein/WireImage

Princess Diana may be gone, but she’s certainly not forgotten. The daring black taffeta gown that she wore for her first public appearance as Prince Charles fiancée, fetched a whopping £192,000 (about $276,621) at Kerry Taylor Auctions in London yesterday. Bought by Chilean fashion museum Fundación Museo De La Moda, the dress–designed by Elizabeth Emanuel and David Emanuel–was sold along with an original copy of the invoice, fashion sketches, and photographs of Di wearing it. “As the weeks before her wedding progressed, Diana lost so much weight that she returned the gown to the Emanuels to have it taken in,” explained auctioneer Kerry Taylor at yesterday’s sale. “The alterations required were so drastic that they decided it would be easier to re-make a smaller version for her. They kept the original and forgot about it only re-discovering it quite recently.” A bold choice at the time for its color–which was reserved for funerals in royal circles–and its somewhat revealing nature, the strapless dress established Princess Diana as a budding fashion icon. Jorge Yarur, founder of the museum that bought the dress, said that upon his death, Princess Diana’s dress will be returned home, donated to Kensington Palace. –Marissa Patlingrao Cooley

Joel Saget/AFP/Getty

Anwar Hussein/WireImage

It is the dress that launched the young blushing Lady Diana Spencer onto the world as not only Prince Charles’ fiancée, but also as a budding fashion icon who dared to break the royal rules by wearing black to a formal event other than a funeral. The black taffeta gown, worn by Diana in March 1981, also put the young design team of David and Elizabeth Emanuel on the map, beginning a partnership that culminated in the princess-to-be’s much-copied wedding dress. Today, the gown–and a prototype of the fairytale bridal dress–are being auctioned off in London and estimated to fetch up to $150,000. Posing with the black dress Monday, Elizabeth Emanuel reminisced to PEOPLE of the night that the 19-year-old Diana became a front-page star as she joined Prince Charles for her first official appearance with him. “This was really a shadow of what she was to become in terms of a fashion icon,” Emanuel says. “It was the first time that people had seen her looking like a princess. Like a movie star. And grown up.” Despite there being a big political story that day, the emerging Diana “took over all of the front pages,” Emanuel recalls. Soon, it became obvious that the palace would have to confirm what the Emanuels already knew — that they were to make Diana’s wedding dress. And, the history of that creation is included in the sale going live this morning, via London’s Kerry Taylor Auctions. –Simon Perry

Joel Saget/AFP/Getty

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Call him The Fresh-Faced Prince of the Air as Prince William gets a new look while embarking on a new life training to pilot rescue helicopters. The prince, 26, arrived back in London after a romantic trip to the seclusion of the Scottish highlands with girlfriend Kate Middleton Tuesday, sparking a new round of impending engagement rumors. And gone was the beard that he grew before Christmas. The news of William’s clean-shaven return to London came as he and his brother, Prince Harry, 24, announced at the same time that they have now been given their own office by their granny, Queen Elizabeth II. William is set to be in London for some royal work and then starts training as a Royal Air Force search-and-rescue helicopter pilot later this month. This month also sees Harry beginning two-and-a-half years of training to fly British army helicopters.The princely pair’s training will even mean that they are stationed at the same base at some point in the year. Tell us: What do you think of Prince William’s shaving off his beard? Do you prefer him clean-shaven? — Simon Perry

Anwar Hussein/WireImage(2)

Perceptive royals-watchers have noticed that the Windsors have a new addition to the family — Prince William‘s bushy facial hair. The heir to the throne has been sporting the sea-captain look in recent weeks, with photographers catching a clean-shaven Prince Harry and a noticeably shaggy Prince “Hairy” playing soccer on Christmas Eve. Wills even snagged runner-up in the Beard of the Year award, given out annually by the Beard Liberation Front to those who give the facially fuzzy a good name. Prince William joins other high-wattage names who’ve taken to letting their inner lumberjacks out, including Robert Pattinson, Jake Gyllenhaal and Hugh Jackman. Tell us: What do you think of Prince William’s new beard? Vote in our poll below! –Michael Y. Park

wenn; Simon Hammond/Splash News online

Kate Middleton needs no advice when it comes to fashion. Stepping out in a regal looking white dress and white cotton Issa trench coat for the Diana memorial concert in London on Sunday she showed off a royal sense of style. With rumors of a reconciliation in the air all eyes were on the beaming Middleton, who dressed down the outfit with her favorite black knee high boots and a perfect blow dry. We love that her outfit was stylish yet practical. As Issa designer Daniella Helayel tells PEOPLE “She looks very chic, demure and understated in the trench coat. It was the perfect outfit for the weather and the event!” We couldn’t agree more. If you can’t afford Kate’s $900 designer trench, try this casual white trench for a similar look, on sale $30 from $80, at gap.com. Add these Isaac Mizrahi boots, $36 at target.com, and this Ann Taylor sheath, $80 at anntaylor.com — and you’ve got the look!

Kate Middleton must be taking a cue from Carmen Electra and Reese Witherspoon on how to handle a very public romantic break up. Look fabulous, of course! After her split with Prince William, the accessories buyer stepped out for a night of dinner and clubbing with her girlfriends, proving that just because she isn’t going to be the next princess, she can still be every bit as chic. We love her long-sleeve, printed shift dress paired with dark tights — very young Hollywood of her. Even without the Prince by her side, we’d still love to keep our fashion eye on her. Tell us: Will you miss seeing Kate?

Love her dress? Get the Look:
Kate’s Lipsy dress, $90 (plus international shipping), lipsy.co.uk.

BCBG Max Azria Floral Print Dress, $178, bloomingdales.com

Tonal Swirl Printed Black and White dress, $54, asos.com

Photo: RAMEY

Kate Middleton has been shopping on the high street again and everyone (including us) loves it! Prince William’s girlfriend, who turned 25 this week, was snapped on Tuesday morning as she left her house for work (at retail chain Jigsaw) in a black and white retro tunic dress from Topshop, £40 (or $78). The accessories buyer put her skills to use by teaming with a classic black blazer, opaque tights and suede knee high boots… and voila, the dress instantly becomes less sixties swing and more princess chic. After the photos surfaced in the British press, the dress sold out completely from Topshop, and it’s already turning up on Ebay!

Photo: MALIBU MEDIA(2)

In this week’s PEOPLE magazine, you can see how Prince William’s girlfriend Kate Middleton’s style stacks up against his much-missed mother. As it turns out, Kate might be dating a Prince, but at least her wardrobe is achievable. Last week, she partied with Prince William and Prince Harry at the exclusive, member-only Cuckoo Club in London wearing an indigo flower print jersey dress from Topshop, a British store that is like H&M but better, costing only £38 (or $72)! A Topshop spokesperson confirms that “she often shops in Topshop.” The dress was in stores back in July and was so popular they have a mustard version out for Autumn/Winter. (Sadly, Topshop doesn’t ship to the US, but there are rumors that it is opening in New York next year.) Although, the fairy tale comes crashes down with her accessories — she was carrying a Mulberry Angelica bag in fuschia, which retais for £250 or $475. The fairytale always has to end, doesn’t it? — Monique Jessen

Photo:TPF/Retna